according to Braman et al. (1995) the last known individual of _T. rex_ (RTMP 81.12.1 - "Huxley Rex") was found exactly 10.5 metres (34.5 feet) below the K-Pg boundary in the Scollard Formation. I would like to ask, how much time does this gap represent? Was the sedimentation rate in the Scollard Fm. the same as in the Hell Creek Fm., where the rate is about 3 cm/1000 years (or 1 meter per ~30 000 years)? Does that mean this individual of _T. rex_ died some 300 000 years before the Chicxulub asteroid impact? Thank you in advance, Tom